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RISS 인기검색어
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- 저자 : Ramdial, (검색결과 2 건)
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Ramdial, Hema,Abreu, Kathryn De,Rampersad, Sephra N. The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.2
Bell pepper is an economically important crop worldwide; however, production is restricted by a number of fungal diseases that cause significant yield loss. Chemical control is the most common approach adopted by growers to manage a number of these diseases. Monitoring for the development to resistance to fungicides in pathogenic fungal populations is central to devising integrated pest management strategies. Two fungal species, Fusarium incarnatum-equiseti species complex (FIESC) and Colletotrichum truncatum are important pathogens of bell pepper in Trinidad. This study was carried out to determine the sensitivity of 71 isolates belonging to these two fungal species to fungicides with different modes of action based on in vitro bioassays. There was no significant difference in log effective concentration required to achieve 50% colony growth inhibition ($LogEC_{50}$) values when field location and fungicide were considered for each species separately based on ANOVA analyses. However, the $LogEC_{50}$ value for the Aranguez-Antracol locationfungicide combination was almost twice the value for the Maloney/Macoya-Antracol location-fungicide combination regardless of fungal species. $LogEC_{50}$ values for Benomyl fungicide was also higher for C. truncatum isolates than for FIESC isolates and for any other fungicide. Cropping practices in these locations may explain the fungicide sensitivity data obtained.
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Hema Ramdial,Kathryn De Abreu,Sephra N. Rampersad 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.2
Bell pepper is an economically important crop worldwide;however, production is restricted by a numberof fungal diseases that cause significant yield loss. Chemical control is the most common approach adoptedby growers to manage a number of these diseases. Monitoring for the development to resistance tofungicides in pathogenic fungal populations is centralto devising integrated pest management strategies. Two fungal species, Fusarium incarnatum-equiseti speciescomplex (FIESC) and Colletotrichum truncatumare important pathogens of bell pepper in Trinidad. This study was carried out to determine the sensitivityof 71 isolates belonging to these two fungal species tofungicides with different modes of action based on invitro bioassays. There was no significant difference inlog effective concentration required to achieve 50%colony growth inhibition (LogEC50) values when fieldlocation and fungicide were considered for each speciesseparately based on ANOVA analyses. However,the LogEC50 value for the Aranguez-Antracol locationfungicidecombination was almost twice the valuefor the Maloney/Macoya-Antracol location-fungicidecombination regardless of fungal species. LogEC50values for Benomyl fungicide was also higher for C. truncatum isolates than for FIESC isolates and for anyother fungicide. Cropping practices in these locationsmay explain the fungicide sensitivity data obtained.
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